DTC U0073/94, U0100/65, U0123/62, U0124/95, U0126/63: Control Module Communication Bus OFF; Lost Communication with ECM/PCM; Lost Communication with Yaw Rate Sensor Module; Lost Communication with Lateral Acceleration Sensor Module; Lost Communication with Steering Angle Sensor Module: Description
WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
Refer to CAN communication system (See HOW TO PROCEED WITH TROUBLESHOOTING ).